Enables G-protein alpha-subunit binding activity. Involved in cellular response to morphine and response to electrical stimulus. Located in several cellular components, including cell surface; dendrite; and neuronal cell body membrane. Human ortholog(s) of this gene implicated in alcohol use disorder and heroin dependence. Orthologous to human KCNJ6 (potassium inwardly rectifying channel subfamily J member 6). [provided by Alliance of Genome Resources, Apr 2022]