Impairs hemostasis in the envenomed animal. Inhibits ADP- and collagen-induced human platelet aggregation with IC(50) of 123 and 135 nM, respectively. Inhibits sperm-egg binding in a concentration-dependent manner, but has no effect on the fusion of sperm-egg. Binds 1 zinc ion per subunit. Monomer. Expressed by the venom gland. The disintegrin belongs to the medium disintegrin subfamily. Belongs to the venom metalloproteinase (M12B) family. P-II subfamily. P-IIa sub-subfamily.