High affinity heme transporter involved in the assimilation of exogenous heme during conditions of low cellular iron. Localizes from the cell membrane to the vacuolar membrane in the presence of heme. Induced in iron-deplete conditions (at protein level) (PubMed:25733668). Repressed in iron-replete conditions by transcriptional repressor fep1 (PubMed:25733668). Impairs heme import into cell; simultaneous disruption of str3 exacerbates the effect.