Snake venom serine protease active on several blood coagulation enzymes. It completely cleaves fibrinogen Aalpha chain (FGA) after 120 minutes, partially cleaves Bbeta chain (FGB) (overnight) and has no activity on gamma chain. It does not release fibrinopeptides A and/or B exclusively, since the enzyme does not provoke fibrin polymerisation. It also degrades fibrin as efficiently as plasmin, and exhibits potent ability to cleave plasminogen and prothrombin, as well as heavy chain of factor X (F10). In vitro, it cleaves insulin B-chain (at positions His38-Leu39, Ala40-Leu41 and Tyr16-Leu17)