Involved in cilium assembly. Predicted to be located in nucleus. Is expressed in choroid invagination; diencephalon roof plate; medulla oblongata part of 4th ventricle choroid plexus; metencephalon part of 4th ventricle choroid plexus; and olfactory epithelium. Human ortholog(s) of this gene implicated in Joubert syndrome 18 and orofaciodigital syndrome IV. Orthologous to human TCTN3 (tectonic family member 3). [provided by Alliance of Genome Resources, Apr 2022]