The function of ENSG00000176956 (LY6H, lymphocyte antigen 6 family member H) is as follows. Believed to act as a modulator of nicotinic acetylcholine receptors (nAChRs) activity. In vitro inhibits alpha-3:beta-4- containing nAChRs maximum response. May play a role in the intracellular trafficking of alpha-7-containing nAChRs and may inhibit their expression at the cell surface. Seems to inhibit alpha-7/CHRNA7 signaling in hippocampal neurons. {ECO:0000250|UniProtKB:F1LNW6, ECO:0000250|UniProtKB:Q9WUC3}.