May play a role in maintenance of cell cycle integrity by regulating mitosis or cytokinesis. Interacts with PLK1; phosphorylation-dependent. The subcellular location is regulated during cell cycle. During interphase located in the nucleus. During mitosis located at the centrosome and dispersed in the cytoplasm. During telophase located in the midbody. Colocalizes with PLK1 at the centrosome in M phase. Phosphorylated during mitosis in the cell cycle probably by CDK1.