This peptide shows potent and long-lasting antihypertensive activity as well as a reduction of the heart rate. These effects may be explained by the agonistic activities of this peptide for the muscarinic acetylcholine receptor M1 (CHRM1) (EC(50)=0.25-0.31 uM), since these types of G-protein coupled receptor have been demonstrated to be active in the blood pressure control. Expressed by the venom gland. This peptide weakly inhibits angiotensin-converting enzyme (ACE) with no clear preference for either C- or N-domains. It does not potentiate bradykinin, and does not affect angiotensin-1 pressor effects. It does not bind to type-1 angiotensin-2 receptor (AGTR1) (PubMed:17475904). It does not bind to the muscarinic acetylcholine receptor M3 (CHRM3) (PubMed:20814884). Belongs to the bradykinin-potentiating peptide family.