Probable minus end-directed motor protein with a microtubule-enhanced ATPase activity. Binds ATP/ADP in vitro. Retains total enzymatic activity even after the removal of the ADP bound in the active site. Binds microtubules (PubMed:16672264). Homodimer (PubMed:16751590). Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Kinesin family. KIN-7 subfamily.