Participates in Wnt signaling. Plays a complex role in regulating the basal catalytic activity of the alpha subunit (By similarity). Modulates two aspects of male mating behavior; response to hermaphrodite contact and vulval location, acting in the same pathway as lov-1 and pkd-2. Tetramer of two alpha and two beta subunits. Interacts (via C-terminus) with lov-1 (via PLAT domain). Enriched in cilia in male sensory neurons. Expressed in a subset of the adult male sensory neurons: CEM head neurons, ray RnB neurons, and hook HOB tail neurons. Elevated levels are observed during embryogenesis, liver regeneration, and adipocyte differentiation. Phosphorylated by alpha subunit. Belongs to the casein kinase 2 subunit beta family.