Predicted to enable chromatin binding activity and lysine-acetylated histone binding activity. Acts upstream of or within anterior/posterior pattern specification; gene expression; and segment specification. Located in nucleus. Is expressed in several structures, including alimentary system; brain; genitourinary system; limb; and limb bud. Orthologous to human MLLT3 (MLLT3 super elongation complex subunit). [provided by Alliance of Genome Resources, Apr 2022]