Catalyzes an oxidative deamination of predominantly hydrophobic and aromatic L-amino acids, thus producing hydrogen peroxide that may contribute to the toxicity of the venom (PubMed:17320169). Shows very high activity on L-Met, and L-Leu, high activity on L-Ile, L-Phe and L-Tyr and moderate activity on L-His, L-Val and L-Ala (PubMed:17320169, PubMed:30534149). Exhibits diverse biological activities, such as edema, apoptosis of tumor cell lines, antibacterial activities against both Gram-positive and Gram-negative bacteria, as well as induction of platelet aggregation. 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. Unlike other snake venom L-amino acid oxidases, does not induce hemorrhage. It may also induce hemolysis. Has parasiticidal activities against and leishmania, as a result of enzyme-catalyzed hydrogen peroxide production (PubMed:11162565, PubMed:17292326). 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-alanine + O2 = H2O2 + NH4(+) + pyruvate H2O + L-valine + O2 = 3-methyl-2-oxobutanoate + H2O2 + NH4(+) Its enzymatic activities is reduced when it is exposed to Ca(2+), Zn(2+), Al(3+), Cu(2+) or Ni(2+) salts. Optimum pH is 5.5-9.5. Optimum temperature depends on the study: 5-38 degrees Celsius (PubMed:17320169) and 60 degrees Celsius (PubMed:30534149). Homodimer; non-covalently linked. Expressed by the venom gland. N-glycosylated (Probable). The enzymatic activity is not affected by deglycosylation (PubMed:17320169). Shows low or absent catalytic activity on L-Arg, L-Glu, L-Asp, L-Lys, L-Asn, L-Ser, L-Thr, L-Pro, L-Gln, L-Gly, and L-Cys (PubMed:17320169, PubMed:30534149). catalytic activity on L-Val and L-Ala is moderate or low, depending on the study (PubMed:17320169, PubMed:30534149). Belongs to the flavin monoamine oxidase family. FIG1 subfamily.