Predicted to enable identical protein binding activity. Predicted to be involved in several processes, including cellular response to heat; positive regulation of cellular response to heat; and positive regulation of transcription by RNA polymerase II. Predicted to be located in cytoplasm; nucleolus; and nucleoplasm. Predicted to be part of protein phosphatase type 2A complex. Is expressed in several structures, including branchial arch; central nervous system; forelimb bud; retina; and somite. Orthologous to human IER5 (immediate early response 5). [provided by Alliance of Genome Resources, Apr 2022]