The function of SLC12A9 (solute carrier family 12 member 9, ENSG00000146828) is as follows. May be an inhibitor of SLC12A1. Seems to correspond to a subunit of a multimeric transport system and thus, additional subunits may be required for its function (PubMed:10871601). May play a role in lysosomal ion flux and osmoregulation (PubMed:38334070). .