Transcription factor which acts as a transcriptional repressor (By similarity). May also function as a transcriptional activator (By similarity). Binds to the palindromic T site 5'-TTCACACCTAGGTGTGAA-3' DNA sequence, or a half-site, which are present in the regulatory region of several genes (By similarity). Binds DNA as a monomer. Repression domain 1 (RD1) is involved in transcriptional repression. Truncated N-terminus.