Involved in cilium assembly; protein localization to ciliary transition zone; and smoothened signaling pathway. Located in ciliary transition zone. Part of MKS complex. Is expressed in several structures, including central nervous system; retina; and turbinate bone primordium. Human ortholog(s) of this gene implicated in Joubert syndrome 24 and Meckel syndrome 8. Orthologous to human TCTN2 (tectonic family member 2). [provided by Alliance of Genome Resources, Apr 2022]