Thrombin-like snake venom serine protease. Releases both fibrinopeptides A and B after 90 min incubation, but only fibrinopeptides A after 10 min incubation. Clots fibrinogen with different clotting time depending on the species: bovine > dog = human > goat. Fails to clot both rabbit and cat fibrinogens. Monomer. Expressed by the venom gland. Glycosylated. Belongs to the peptidase S1 family. Snake venom subfamily.