Component of the outer dynein arm-docking complex (ODA-DC) that mediates outer dynein arms (ODA) binding onto the doublet microtubule. Involved in mediating assembly of both ODAs and their axonemal docking complex onto ciliary microtubules. Component of the outer dynein arm-docking complex along with ODAD1, ODAD3, ODAD4 and CLXN. Expressed in trachea multiciliated cells.