The function of DMTF1 (cyclin D binding myb like transcription factor 1, ENSG00000135164) is as follows. Transcriptional activator which activates the CDKN2A/ARF locus in response to Ras-Raf signaling, thereby promoting p53/TP53- dependent growth arrest (By similarity). Binds to the consensus sequence 5'-CCCG[GT]ATGT-3' (By similarity). Isoform 1 may cooperate with MYB to activate transcription of the ANPEP gene. Isoform 2 may antagonize transcriptional activation by isoform 1. {ECO:0000250, ECO:0000269|PubMed:12917399}.