Enables protein C-terminus binding activity and protein serine/threonine phosphatase activity. Involved in several processes, including negative regulation of Ras protein signal transduction; positive regulation of microtubule binding activity; and response to lead ion. Predicted to be located in cytoplasm. Predicted to be part of protein phosphatase type 2A complex. Orthologous to human PPP2CB (protein phosphatase 2 catalytic subunit beta). [provided by Alliance of Genome Resources, Apr 2022]