BrlA, abaA and wetA are pivotal regulators of conidiophore development and conidium maturation (By similarity). They act individually and together to regulate their own expression and that of numerous other sporulation-specific genes (By similarity). Plays an essential role in the completion of conidial maturation and is essential for trehalose biogenesis in conidia (PubMed:20966095). Negatively regulates expression of the melanin biosynthetic gene cluster (PubMed:24123270). Also plays an a role in the early phase of fungal growth including proper hyphal branching (PubMed:20966095). Highly expressed during conidiation (PubMed:18298443, PubMed:20966095). Expression is positively regulated by hsp90 (PubMed:22822234). Expression is also controlled by upstream regulators calA and crzA (PubMed:18298443). Expression is decreased by 2',4'-Dihydroxychalcone (2',4'-DHC) (PubMed:26190922). Causes the formation of defective spore walls and a lack of trehalose biogenesis, leading to a rapid loss of spore viability and reduced tolerance to various stresses (PubMed:20966095). Leads also to delayed germtube formation and reduced hyphal branching (PubMed:20966095). Belongs to the wetA family.