Predicted to be involved in negative regulation of transcription by RNA polymerase II. Located in several cellular components, including dendrite; perinuclear region of cytoplasm; and postsynaptic membrane. Is expressed in several structures, including brain; egg cylinder; heart; liver; and reproductive system. Orthologous to human MAGEE1 (MAGE family member E1). [provided by Alliance of Genome Resources, Apr 2022]