Transcriptional repressor which preferentially binds to the GC-rich consensus sequence (5'-AGCCCCCGGCG-3') and may regulate expression of TNF, EGFR and PDGFA. May control smooth muscle cells proliferation following artery injury through PDGFA repression. May also bind double-stranded RNA. Positively regulates Toll-like receptor (TLR) signaling in response to agonist probably by competing with the negative FLII regulator for MYD88-binding. Homodimer. May also form higher oligomers. Interacts with FLII. Interacts with MYD88. Competes with FLII for MyD88-binding, even in the absence of LPS. Ubiquitously expressed. Widely expressed in fetal tissues. The DNA-binding domain is intrinsically unstructured. The coiled coil mediates dimerization. Belongs to the LRRFIP family. Contaminating sequence. Potential poly-A sequence.