Enables protein C-terminus binding activity. Involved in centrosome cycle; positive regulation of centrosome duplication; and positive regulation of cilium assembly. Acts upstream of or within several processes, including astral microtubule organization; nervous system development; and regulation of microtubule-based process. Located in centriole and centrosome. Is expressed in nervous system and sensory organ. Human ortholog(s) of this gene implicated in Joubert syndrome 31 and short-rib thoracic dysplasia 13 with or without polydactyly. Orthologous to human CEP120 (centrosomal protein 120). [provided by Alliance of Genome Resources, Apr 2022]