Responsible for microtubule translocation. May be important for the organization of phragmoplast-specific arrays of microtubules (By similarity). Plays an essential role in stabilizing the mitotic spindle. Required during mitotic cytokinesis (By similarity). Microtubule-associated. A number of isoforms are produced. According to EST sequences. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Kinesin family. KIN-5/BimC subfamily. Sequencing errors.