Predicted to enable acetylcholine-gated monoatomic cation-selective channel activity and transmembrane signaling receptor activity. Predicted to be involved in monoatomic ion transmembrane transport. Predicted to be located in postsynaptic membrane. Is an ortholog of C. elegans lev-1. In C. elegans, lev-1 is involved in regulation of egg-laying behavior; regulation of locomotion; and transmembrane transport.