Promotes chemoreceptor gene expression in response to increased cGMP levels by antagonizing the gene repression functions of the class II HDAC hda-4 and the mef-2 transcription factor. Regulates gene expression via recruitment of a histone deacetylase complex containing hda-2, saeg-1 and saeg-2. Represses body size and lifespan through the dbl-1 and insulin pathways, respectively. May also signal through daf-3 and/or daf-5. Role in egg-laying, dauer formation and motility. Regulates behavioral responses to various chemosensory stimuli in sensory neurons. Required for the initiation of long term adaptation to prolonged odor exposure which results in a decrease in odor seeking behavior. May regulate this process by phosphorylating tax-2, a subunit of cyclic nucleotide-gated channel tax-2/tax-4. In ASH sensory neurons, negatively regulates avoidance behavior to some bitter tastants, such as quinine, probably by phosphorylating rgs-2 and rgs-3 which are 2 regulator of G-protein signaling proteins. In AWB sensory neurons, involved in avoidance behavior to some repellent odors. In ASE left (ASEL) sensory neuron, involved in the sensing of environmental alkalinity downstream of receptor-type guanylate cyclase gcy-14. In sensory neurons, involved in the signaling pathway downstream of insulin, TGF-beta and receptor-type guanylate cyclase responsible for inducing quiescence after food intake. Might play a role in aversive olfactory learning in AWC neurons when an odor is associated with food deprivation, depending on the ins-1/age-1 signal from the AIA to the AWC neurons. Probably by regulating neuronal transmission downstream of lin-3 and receptor lin-23 and phospholipase plc-3 in ALA neurons, involved in the decrease in locomotion during the quiescent state that precedes each larval molt.
