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 (PubMed:16809041). Is highly active on L-Phe, L-Tyr, L-Trp, L-Leu, L-Met, and L-Ile, is moderately active on L-Val, and L-His, and is no or weakly active on L-Ala, L-Arg, L-Pro, L-Thr, L-Ser, L-Glu, L-Gly, and L-Lys (PubMed:16809041). Exhibits diverse biological activities, such as edema, antibacterial (E.coli, and P.aeruginosa) and antiparasitic activities, as well as induction of platelet aggregation (PubMed:16809041). 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 have activities in hemorrhage, hemolysis, and apoptosis. an L-alpha-amino acid + H2O + O2 = a 2-oxocarboxylate + H2O2 + NH4(+) H2O + L-leucine + O2 = 4-methyl-2-oxopentanoate + H2O2 + NH4(+) H2O + L-phenylalanine + O2 = 3-phenylpyruvate + H2O2 + NH4(+) H2O + L-tryptophan + O2 = H2O2 + indole-3-pyruvate + NH4(+) H2O + L-methionine + O2 = 4-methylsulfanyl-2-oxobutanoate + H2O2 + NH4(+) H2O + L-isoleucine + O2 = (S)-3-methyl-2-oxopentanoate + H2O2 + NH4(+) H2O + L-histidine + O2 = 3-(imidazol-5-yl)pyruvate + H2O2 + NH4(+) H2O + L-tyrosine + O2 = 3-(4-hydroxyphenyl)pyruvate + H2O2 + NH4(+) H2O + L-valine + O2 = 3-methyl-2-oxobutanoate + H2O2 + NH4(+) Homodimer; non-covalently linked. Expressed by the venom gland. Contains 2 disulfide bonds. N-glycosylated. Has parasiticidal activities against leishmania, as a result of enzyme-catalyzed hydrogen peroxide production. Belongs to the flavin monoamine oxidase family. FIG1 subfamily.