Transcription factor; part of the gene cluster that mediates the biosynthesis of dihydroxynaphthalene (DHN)-melanin, a bluish-green pigment forming a dark layer in the conidial wall that protects the conidia from UV radiations (PubMed:28517364). The 2 transcription factors present in the cluster, PfmaF and PfmaH, coordinately regulate DHN-melanin production (PubMed:31116900). PfmaH acts as a pathway specific regulator to mediate the expression of Pfma cluster genes including PfmaJ, leading to DHN-melanin production in conidia, and regulates the conidial formation (PubMed:31116900). Expression is positively regulazed by the cluster-specific transcription factor pfmaF. Leads to the accumulation of a large amount of shunt product scytalone.