Plays an essential role in centriole growth by stabilizing a procentriolar seed composed of at least, SASS6 and CENPJ. Required for anchoring microtubules to the centrosomes and for the integrity of the microtubule network. Recruits PPARA to discrete subcellular compartments and thereby modulates PPARA activity. Required for ciliation. Part of a ternary complex that contains CEP350, CEP43 and MAPRE1. Interacts (via C-terminus) directly with CEP43 (via N-terminus). Interacts with NR1H3, PPARA, PPARD and PPARG. Interacts directly with microtubules. Interacts with the fusion protein CEP43-FGFR1, and by doing so recruits and activates PI3K and PLC-gamma. Interacts with CYLD (By similarity). Interacts with CFAP157 (PubMed:27965440). Interacts with CEP19 (via C-terminus) (By similarity). Associated with mitotic spindles. Nuclear, in discrete foci. Associated with intermediate filaments. Also present in the pericentrosomal area. Localizes on both mother and daughter centrioles. Localizes to an axial position on the mother centriole. Localizes to the distal end of the centriole on the subdistal appendage region. Phosphorylated during mitosis.