Transcription factor that regulates the expression of the gene cluster that mediates the biosynthesis of fusaric acid, a mycotoxin with low to moderate toxicity to animals and humans, but with high phytotoxic properties (PubMed:26662839). Fusaric acid is phytotoxic to plants such as cotton and banana (PubMed:20955724, PubMed:23922960). It has been shown to induce programmed cell death in plants (PubMed:16868776, PubMed:23838885). In addition to a mild toxicity to animals, fusaric acid exhibits acanthamoebicidal, antioomycete, and antimycobacterial activities (PubMed:17927749, PubMed:22864988, PubMed:21811925).