Predicted to enable heat shock protein binding activity; mitogen-activated protein kinase kinase kinase binding activity; and protein serine/threonine phosphatase activity. Predicted to be involved in negative regulation of MAPK cascade and negative regulation of peptidyl-threonine phosphorylation. Predicted to act upstream of or within visual perception. Predicted to be active in cytosol and nucleus. Orthologous to human PPEF2 (protein phosphatase with EF-hand domain 2). [provided by Alliance of Genome Resources, Apr 2022]