Enables DNA-binding transcription activator activity, RNA polymerase II-specific and cAMP response element binding activity. Involved in chondrocyte differentiation; endoplasmic reticulum to Golgi vesicle-mediated transport; and positive regulation of transcription by RNA polymerase II. Predicted to be located in chromatin; nucleoplasm; and perinuclear endoplasmic reticulum. Is expressed in several structures, including brain; early conceptus; embryo mesenchyme; and genitourinary system. Orthologous to human CREB3L2 (cAMP responsive element binding protein 3 like 2). [provided by Alliance of Genome Resources, Apr 2022]