Protein phosphatase regulator; subunit of the Bud14p-Glc7p complex that localizes Glc7p to the cell cortex where it activates the dynein/dynactin complex; subunit of the KFRC complex with Kel1p and Kel2p that regulates Bnr1p (formin) to control actin cable assembly, cytokinesis, and polarized growth; involved in spindle pole body size maintenance; involved in bud-site selection; relative distribution to the nucleus increases upon DNA replication stress