Enables protein phosphatase 2A binding activity. Predicted to be involved in several processes, including negative regulation of nitrogen compound metabolic process; negative regulation of stress-activated MAPK cascade; and response to interleukin-1. Predicted to act upstream of or within negative regulation of apoptotic signaling pathway. Predicted to be located in cytoplasm and microtubule. Predicted to be active in cytosol. Human ortholog(s) of this gene implicated in corpus callosum agenesis-intellectual disability-coloboma-micrognathia syndrome. Orthologous to human IGBP1 (immunoglobulin binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]