Interacts (when myristoylated) with UNC119 and UNC119B; interaction is required for localization to cilium. Expression is enriched in the ciliary axoneme. Localization to cilium is mediated via interaction with UNC119 and UNC119B, which bind to the myristoyl moiety of the N-terminus. Expressed at high levels in the kidney and pancreas. Moderate expression seen in the skeletal muscle, liver and heart. A weak expression seen in the brain, lung, uterus, prostate, testis, small intestine and colon. Fetal kidney.