Is predicted to encode a protein with the following domains: CRAL/TRIO domain; CRAL-TRIO lipid binding domain; MSP (Major sperm protein) domain; Immunoglobulin-like fold; CRAL-TRIO lipid binding domain superfamily; PapD-like superfamily; CRAL/TRIO, N-terminal domain superfamily; and Major sperm protein (MSP) domain. Is an ortholog of C. elegans hpo-28.