Cholesterol-binding protein involved in the redistribution of cholesterol from lipid droplets to the endoplasmic reticulum (PubMed: 19729679). Required to meet cholesterol demands during erythropoietic differentiation (PubMed: 19729679). May play a role in transport processes at the plasma membrane of erythrocytes, including regulating VDAC-mediated ATP export, and import of the heme precursors protoporphyrin IX and 5-aminolevulinic acid (PubMed: 27641616, PubMed: 30061676, PubMed: 31989647).
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