Serine/threonine-protein kinase which regulates the localization and the function of the septins during mitosis. Involved in the formation of the septin ring but not the basal septin band. Phosphorylates septins CDC11 and SEP7. Required for the transition from pseudohyphae to hyphae. Acts upstream of IRS4 and INP51 in regulating cell wall integrity responses. Involved in propolis-induced cell death. ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein] ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein] Associates with the septin complex which consists of CDC3, CDC10, CDC11, CDC12, and SEP7. Hyperphosphorylated during mitosis at dozens of sites. Among these, 7 have perfect or minimal CDK consensus sites and are CDC28 targets. Leads to hyperinvasive cells. Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. NIM1 subfamily.