Positive transcriptional factor that acts as a component of the stress responsive system. Recognizes and binds to the stress response element (STRE) which is involved in the response to various forms of stress (heat, oxidative, osmotic, etc.). Involved in the regulation of the CTT1, DDR2, HSP12 genes. May be regulated via WHI2-PSR1 complex phosphatase activity. Interacts with WHI2. The 9aaTAD motif (residues 261 to 269) is a transactivation domain present in a large number of yeast and animal transcription factors. Present with 125 molecules/cell in log phase SD medium.