Required for myelination. Homodimer (PubMed:14567997). Interacts with DYNLL1 and DYNLL2 (By similarity). Highly expressed in the brain and, more specifically, in oligodendrocytes (at protein level). Expressed in the prostate, and at lower levels in testis, intestine and colon. Overexpressed in most breast cancer cell lines and down-regulated in some colorectal tumors.