Acts upstream of or within regulation of G protein-coupled receptor signaling pathway. Located in postsynaptic membrane and presynaptic membrane. Part of receptor complex. Is expressed in autopod; central nervous system; dorsal root ganglion; sensory organ; and trachea. Orthologous to human KCTD16 (potassium channel tetramerization domain containing 16). [provided by Alliance of Genome Resources, Apr 2022]