Component of the outer dynein arm-docking complex (ODA-DC) that mediates outer dynein arms (ODA) binding onto the doublet microtubule. Seems to regulate the assembly of both ODAs and their axonemal docking complex onto ciliary microtubules (PubMed:34715025). Regulates ciliary and flagellar motility and is required for cilia-driven determination of body laterality (By similarity). Component of the outer dynein arm-docking complex along with ODAD1, ODAD2, ODAD3 and ODAD4. Expressed in trachea multiciliated cells.