This family of microtubule-binding proteins may play a role in embryonic brain development and cilia beating [1].

1: CSAP localizes to polyglutamylated microtubules and promotes proper cilia function and zebrafish development. Backer CB, Gutzman JH, Pearson CG, Cheeseman IM; Mol Biol Cell. 2012;23:2122-2130. PMID:22493317