Mucolipin-3 (MCOLN3)

Nonselective ligand-gated cation channel likely playing a role in the regulation of membrane trafficking events. Acts as Ca(2+)-permeable cation channel with inwardly rectifying activity (PubMed:18369318, PubMed:19497048, PubMed:19522758, PubMed:19885840, PubMed:29106414).

Mediates release of Ca(2+) from endosomes to the cytoplasm, contributes to endosomal acidification and is involved in the regulation of membrane trafficking and fusion from the endosomal pathway (PubMed:21245134). Does not appear to serve as mechanosensory transduction channel in inner ear sensory hair cells.