May play a role in regulating both nuclear and cytoplasmic aspects of the mitotic cycle (PubMed:1660828). Regulates localization of the augmin complex during mitosis by ensuring its location on mitotic spindles (PubMed:24829288). Also regulates augmin complex localization during male meiosis by promoting its placement at kinetochores while preventing its association with spindle microtubules (PubMed:24829288). ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein] ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein] Larval disks, brain and testis. Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. CDC5/Polo subfamily.