Uptake of biotin. Acts probably by facilitated diffusion. biotin(in) = biotin(out) Biotin uptake is weakly inhibited by CCCP and FCCP protonophores and by the respiratory chain blocker NaN(3). Expression is repressed by biotin. Deletion of the gene abolishes biotin uptake (Ref.5, PubMed:1091631). BioH-bioP double mutant is unable to grow on trace levels of biotin (PubMed:24256712). Belongs to the drug/metabolite transporter (DMT) superfamily. 10 TMS drug/metabolite exporter (DME) (TC 2.A.7.3) family.