Enables several functions, including DNA-binding transcription activator activity, RNA polymerase II-specific; histone deacetylase binding activity; and protein dimerization activity. Acts upstream of or within several processes, including osteoblast differentiation; skeletal muscle cell differentiation; and skeletal system development. Located in cytoplasm and nucleus. Is expressed in several structures, including brain; dorsal aorta; early conceptus; embryo mesenchyme; and genitourinary system. Orthologous to human MEF2D (myocyte enhancer factor 2D). [provided by Alliance of Genome Resources, Apr 2022]