The function of Ensembl gene identifier ENSG00000164626 (KCNK5, potassium two pore domain channel subfamily K member 5) is as follows. K(+) channel that conducts voltage-dependent outward rectifying currents upon membrane depolarization. Voltage sensing is coupled to K(+) electrochemical gradient in an 'ion flux gating' mode where outward but not inward ion flow opens the gate (PubMed:26919430, PubMed:36063992, PubMed:9812978). Homo- and heterodimerizes to form functional channels with distinct regulatory and gating properties (PubMed:36063992). {ECO:0000269|PubMed:26919430, ECO:0000269|PubMed:36063992, ECO:0000269|PubMed:9812978}.