Acts as an inhibitor of nicotinic acetylcholine receptors (nAChR) (PubMed:25466886). Specifically inhibits the alpha-7 nAChRs of D.melanogaster, and seems to have no inhibitory effect on vertebrate nAChR subtypes (PubMed:25466886). Expressed by the venom duct (at protein level). The cysteine framework is I (CC-C-C). Alpha4/3 pattern. Belongs to the conotoxin A superfamily.