MFS transporter involved in N-acetylglucosamine (GlcNAc) uptake (PubMed:19648376). Confers resistance to cycloheximide, 4-nitroquinoline-N-oxide, and 1,10-phenanthroline, and contributes to virulence (PubMed:12076781, PubMed:12589826). Expression is induced in presence of cycloheximide, 4-nitroquinoline-N-oxide, and 1,10-phenanthroline (PubMed:12589826). Expression is up-regulated during biofilm formation (PubMed:25784162). Expression is also increased in high-iron conditions (PubMed:15387822). Expression is decreased after combined treatment with fluconazole and osthole (PubMed:28607012). Leads to increased susceptibility to cycloheximide, 4-nitroquinoline-N-oxide, and 1,10-phenanthroline, but not to actinomycin D, fluconazole, ketoconazole and colchicine (PubMed:12076781). Leads also to attenuated virulence in mice (PubMed:12076781). Belongs to the major facilitator superfamily. DHA1 family. Polyamines/proton antiporter (TC 2.A.1.2.16) subfamily.