May act as a neurotoxin (By similarity). Has no activity on mollusks (tested on the freshwater snail C.retropictus) (PubMed:28831846). Expressed by the venom duct. The cysteine framework is III (CC-C-C-CC). Classified in the M-2 branch, since 2 residues stand between the fourth and the fifth cysteine residues. Monoisotopic mass. Belongs to the conotoxin M superfamily.