Microtubule plus-end tracking protein that promotes the stabilization of dynamic microtubules during anaphase. Plays a crucial role in chromatin-induced microtubule formation. May also act at microtubule minus ends. May be involved in the nucleation of noncentrosomal microtubules originating from the trans-Golgi network (TGN) (By similarity). Localizes to microtubule plus ends. Belongs to the CLASP family.