Impairs hemostasis in the envenomed animal. Inhibits platelet aggregation induced by ADP, thrombin, platelet-activating factor and collagen. Acts by inhibiting fibrinogen interaction with platelet receptors alpha-IIb/beta-3 (ITGA2B/ITGB3). Binds 1 zinc ion per subunit. Monomeric (disintegrin). Expressed by the venom gland. Glycans are composed of 4 GlcNAc, 3 Man, 2 Gal, 2 NeuAC and 1 Fuc residue. Belongs to the venom metalloproteinase (M12B) family. P-II subfamily. P-IIa sub-subfamily.