Is an ortholog of human GNAQ (G protein subunit alpha q). Is predicted to have G protein-coupled receptor binding activity\; G-protein beta\/gamma-subunit complex binding activity\; and GTPase activity. Is involved in several processes, including activation of immune response\; chemosensory behavior\; and positive regulation of transport. Localizes to several cellular components, including the axon\; cytoplasm\; and extrinsic component of cytoplasmic side of plasma membrane. Is expressed in several tissues, including the muscular system and the nervous system.