Snake venom zinc metalloprotease that exhibits direct fibrinolytic activity. Hydrolysis of 14-Ala-|-Leu-15 in insulin B chain and 413-Lys-|-Leu-414 in alpha-chain of fibrinogen. Binds 1 zinc ion. Is inhibited by EDTA, o-phenanthroline and tetraethylenepentamine. Monomer. Expressed by the venom gland. Failed the phase III clinical trial for the treatment of arterial occlusive disease and acute ischemic stroke. Belongs to the venom metalloproteinase (M12B) family. P-I subfamily.