Protein kinase involved in determination of morphology during the cell cycle of both yeast-form and hyphal cells via regulation of SWE1 and CDC28. Regulates pseudohypha formation, but is not required for septin ring organization or septum formation. Plays an essential role in virulence in a mouse model. ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein] ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein] In the hyphal cells, localizes at a potent septation site before the completion of septum formation. Phosphorylated throughout the cell cycle, except for the G1 phase. Leads to elongated cell phenotype. Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. NIM1 subfamily.