Weakly and reversibly inhibits rat homomeric ASIC1 (isoform ASIC1a) (IC(50)=4.8 uM), and ASIC3 (IC(50)=15.9 uM) (PubMed:29684594). In vivo, induces an antihyperalgesic effect in the acid-induced muscle pain mice model (PubMed:29684594). Molecular modeling interaction with ASIC1a suggests that this peptide hinders the collapse of acidic pockets and stabilize nonconducting channels state (PubMed:32326130). Belongs to the sea anemone type 3 (BDS) potassium channel toxin family.