Transcriptional regulator that binds to its own promoter and thus may play a role in the regulation of the cotranscribed genes Rv1827 and Rv1828. Can also bind several promoter regions of genes that are essential, including ftsZ. Binds to the imperfect everted repeat sequence CTCAA through its winged-HTH motif. Homodimer. Autoregulated. Contains an N-terminal DNA-binding domain, a linker region and a C-terminal effector binding domain. Dimerization is mediated via the C-terminal domain. Was identified as a high-confidence drug target.