Snake venom zinc metalloproteinase that has hemorrhagic activity. Inhibits ADP-, TMVA- and stejnulxin-induced platelet aggregation in a dose-dependent manner (on washed platelet, but not on platelet rich plasm). Also specifically degrades alpha-chain of fibrinogen (FGA). Binds 1 zinc ion per subunit. Inhibited by EDTA, but not by PMSF. Monomer. Expressed by the venom gland. Does not affect beta- (FGB) and gamma-chain (FGG) of fibrinogen. Does not interfere with ristocetin-, thrombin-, and collagen-induced platelet aggregation. Belongs to the venom metalloproteinase (M12B) family. P-III subfamily. P-IIIa sub-subfamily.