Enables RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; identical protein binding activity; and nuclear receptor activity. Involved in cellular response to retinoic acid. Acts upstream of or within several processes, including cardiac muscle tissue development; maternal placenta development; and retinoic acid receptor signaling pathway. Predicted to be located in nucleoplasm. Predicted to be part of RNA polymerase II transcription regulator complex. Is expressed in several structures, including alimentary system; branchial arch; central nervous system; genitourinary system; and sensory organ. Orthologous to human RXRB (retinoid X receptor beta). [provided by Alliance of Genome Resources, Apr 2022]