Has both folate hydrolase and N-acetylated-alpha-linked-acidic dipeptidase (NAALADase) activity. Has a preference for tri-alpha-glutamate peptides (By similarity). In the intestine, required for the uptake of folate. In the brain, modulates excitatory neurotransmission through the hydrolysis of the neuropeptide, N-aceylaspartylglutamate (NAAG), thereby releasing glutamate.
Cell membrane, Single-pass type II membrane protein
Peptidase M28 family, M28B subfamily
Widely expressed throughout brain regions with highest levels in the hippocampus, dentate gyrus, priform cortex, choroid plexus of ventricles, pineal gland, anterior lobe of the pituitary gland and supraoptic nucleus. High levels also found in the cerebra