Negative regulator of cell wall integrity (CWI) in unstressed cells, probably by inhibiting protein kinase PKH1/PHK2 activity and regulating their downstream CWI pathways PKC1-MAP kinase pathway and protein kinase YPK1 pathway. Activity may be regulated by the transient increase of sphingolipid long chain bases (LCBs) during heat stress. Phosphorylated by PKH1 and PKH2. Phosphorylation is inhibited by sphingolipid long chain bases (LCBs). Present with 2157 molecules/cell in log phase SD medium.