Natriuretic peptide that dose-dependently induces the rapid relaxation of rat aortic strips phenylephrine-precontracted. Acts by stimulating cGMP production in a dose-dependent manner (by probably activating NPR1 and/or NPR2). May also show potent hypotensive effects. Expressed by the venom gland. Does not inhibits platelet aggregation. Belongs to the natriuretic peptide family.