The function of Ensembl gene identifier ENSG00000184261 (KCNK12, potassium two pore domain channel subfamily K member 12) is as follows. K(+) channel subunit that may homo- and heterodimerize to form functional channels with distinct regulatory and gating properties. Can heterodimerize with KCNK13 subunit to conduct K(+) outward rectifying currents at the plasma membrane. The homodimers are mainly retained in the endoplasmic reticulum compartment and may be targeted to the cell surface upon phosphorylation or other activation signals yet to be elucidated. {ECO:0000269|PubMed:24163367, ECO:0000269|PubMed:25148687}.