Present in the aqueous fluid surrounding olfactory sensory dendrites and thought to aid in the capture and transport of hydrophobic odorants into and through this fluid. Expressed in the ovary at 48 and 72 hours post blood meal (PBM) but not at 12 hours PBM (at protein level). Expressed only in females with high levels in ovaries and lower levels in the fat body. Not detected in the midgut. Not detected in the head at 48 hours PBM. By blood feed. Accumulates highly at 48 hours post blood meal. Belongs to the PBP/GOBP family.