Kinesin-like motor protein that promotes synapsis and is required for proper crossover distribution in meiosis (PubMed:25330379). Plays a role in the nuclear division cycles during megagametogenesis (PubMed:24667993). Homodimer. Interacts with WIP1 and WIP2. Specifically expressed in ovules and anthers. Partial seed abortion due to defects in megagametogenesis (PubMed:24667993, PubMed:25330379). Defects in pollen viability (PubMed:25330379). Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Kinesin family. KIN-1 subfamily.