Acts upstream of or within positive regulation of striated muscle cell differentiation and positive regulation of transcription by RNA polymerase II. Predicted to be located in nucleolus; nucleoplasm; and plasma membrane. Predicted to be part of NuA4 histone acetyltransferase complex. Orthologous to human MORF4L2 (mortality factor 4 like 2). [provided by Alliance of Genome Resources, Apr 2022]