Transcription factor; part of the Fusarium detoxification of benzoxazolinone cluster involved in the degradation of benzoxazolinones produced by the host plant (PubMed:25727347, PubMed:26828593). Maize, wheat, and rye produce the 2 benzoxazinone phytoanticipins 2,4-dihy-droxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) and 2,4-dihydroxy-1,4-benzoxazin-3-one (DIBOA) that, due to their inherent instability once released, spontaneously degrade to the more stable corresponding benzoxazolinones, 6-methoxy-2-benzoxazolinone (MBOA) and 2-benzoxazolinone (BOA), respectively (By similarity). FPSE_08121 positively regulates the expression of the FBD cluster gene FPSE_08120 in response to 2-aminophenol (2-AP) treatment and contributes quantitatively to benzoxazolinone tolerance (PubMed:26828593). Expression is induced in response to 2-benzoxasolinone (BOA) exposure (PubMed:25727347). Expression is also induced in response to 6-methoxy-2-benzoxazolinone (MBOA) and 2-aminophenol (2-AP) treatment (PubMed:26828593). Reduces significantly the induction of the FBD cluster gene FPSE_08120 in response to 2-aminophenol (2-AP) treatment.