Probable transcription factor. Binds to the consensus DNA sequence 5'-AACAAT-3'. Also binds 5'-CACAAT-3' and 5'-AATAAT-3' with similar affinity. Expressed in the adult spleen, lung, heart and kidney, and at a lower level in the adult testis, liver and brain. Expressed in adults but not in embryos. Binds target DNA via the HMG box domain. The 9aaTAD motif is a transactivation domain present in a large number of yeast and animal transcription factors.