Thrombin-like snake venom serine protease that cleaves alpha-chain of fibrinogen (FGA) releasing fibrinopeptide A. Has high clotting activity. Its proteolytic activity is inhibited by PMSF and TPCK. Optimum pH is 8. Optimum temperature is between 20 and 40 degrees Celsius. Monomer. Expressed by the venom gland. N-glycosylated. Belongs to the peptidase S1 family. Snake venom subfamily.