This protein is a zinc protease from snake venom that induces hemorrhage. Cleavage of 10-His-|-Leu-11, 14-Ala-|-Leu-15, 16-Tyr-|-Leu-17 and 23-Gly-|-Phe-24 bonds of the B chain of insulin, His-|-Pro, Pro-|-Phe, and Trp-|-Ser of angiotensin I, and Gly-|-Phe of Met enkephalin. Binds 1 zinc ion per subunit. Monomer. Expressed by the venom gland. Belongs to the venom metalloproteinase (M12B) family. P-I subfamily.