Protein serine/threonine kinase; essential for cell wall remodeling during growth; phosphorylates Ssa1p in response to the Mid2p mechanosensor, regulating the heat shock response, including epichaperome rearrangement and fine-tuning of multiple cellular processes including ribosome engagement, translational fidelity and P-body disassembly; localizes to sites of polarized growth and the mother-daughter bud neck; homolog of the alpha, beta, and gamma isoforms of mammalian protein kinase C (PKC)