May catalyze the final step in cell wall teichoic acid biosynthesis, the transfer of the anionic cell wall polymers (APs) from their lipid-linked precursor to the cell wall peptidoglycan (PG). Cell wall biogenesis. Interacts with MreB (PubMed:21964069). Interacts with FloT (PubMed:23651456). Present in detergent-resistant membrane (DRM) fractions that may be equivalent to eukaryotic membrane rafts; these rafts include proteins involved in signaling, molecule trafficking and protein secretion. Single mutant has no effect on cell growth or morphology under normal growth conditions. Triple disruption of tagTUV genes is not viable (PubMed:21964069). Cells lacking this gene display a considerably increased transcription frequency of lytR and lytABC operon expression (PubMed:1357079). Belongs to the LytR/CpsA/Psr (LCP) family. Was originally thought to be involved in transcriptional regulation. This protein is unrelated to LytR from S.aureus, which is part of a two-component regulatory system that, together with LytS, is involved in autolysis and cell wall metabolism. The B.subtilis ortholog of S.aureus LytR is LytT (AC P94514).