Centriole-enriched microtubule-binding protein involved in centriole biogenesis. In collaboration with CEP295 and POC1B, is required for the centriole-to-centrosome conversion by ensuring the formation of bona fide centriole wall (PubMed:32060285). Functions as a linker component that maintains centrosome cohesion. Associates with CROCC and regulates its stability and localization to the centrosome (PubMed:31974111). Interacts with CROCC (PubMed:31974111). Interacts with POC1B; the interaction is direct and recruits POC1B to centriolar microtubules (PubMed:32060285). Binds to centriolar microtubules (PubMed:32060285). Localizes to the proximal end of mother and daughter centrioles. Moderate expression in G0 and G1, increasing in S and G2, and dropping in prophase, metaphase and anaphase (at protein level). Extended N-terminus.