Catalyzes an oxidative deamination of predominantly hydrophobic and aromatic L-amino acids, thus producing hydrogen peroxide that may contribute to the diverse toxic effects of this enzyme. Shows high activity on L-Met, moderate activity on L-Trp, L-Leu, L-His, L-Phe, L-Arg, L-Ile, low activity on L-Val, L-Glu, L-Lys, L-Gln, L-Asn, L-Tyr, L-Ala, and no activity on L-Asp, L-Ser, L-Pro, L-Gly, L-Thr and L-Cys. Shows antimicrobial activity inhibiting the growth of both Gram-negative and Gram-positive bacteria. Also inhibits platelet aggregation induced by ADP or collagen. Effects of snake L-amino oxidases on platelets are controversial, since they either induce aggregation or inhibit agonist-induced aggregation. These different effects are probably due to different experimental conditions. This protein may also induce hemorrhage, hemolysis, edema, apoptosis, and have antiparasitic activities.