Acts upstream of or within several processes, including axoneme assembly; embryonic morphogenesis; and left/right pattern formation. Located in centrosome; ciliary base; and ciliary tip. Part of intraciliary transport particle A and intraciliary transport particle B. Is expressed in several structures, including cranial ganglion; neural tube; olfactory epithelium; respiratory system; and thymus primordium. Orthologous to human CLUAP1 (clusterin associated protein 1). [provided by Alliance of Genome Resources, Apr 2022]