Protein that plays a role in the inhibition of canonical Wnt signaling pathway (By similarity). May be involved in neuronal migration during development of the cerebral neocortex (By similarity). Involved in the control of ciliogenesis and ciliary length (By similarity). Interacts with DVL1, DVL2 and DVL3. Localizes to the ciliary axoneme and to mitotic spindle fibers in a cell-cycle-dependent manner. Expressed in hair cells of the inner ear. Animals develop periportal hepatic fibrosis with biliary duct proliferation at age 11 months. Extended N-terminus.