Transcription factor that binds preferentially to the recognition sequence which consists of two distinct half-sites; ('GCAT') and ('TAAT'); separated by a nonconserved spacer region of 0; 2; or 3 nucleotides. Positively regulates the genes under the control of corticotropin-releasing hormone (CRH) and CRH II promoters (By similarity). {ECO:0000250}.