| Domain | Name | Category | Type |
| IPR000203 | GPS motif | Domain | Domain |
| IPR000832 | GPCR, family 2, secretin-like | Family | Family |
| IPR000922 | D-galactoside/L-rhamnose binding SUEL lectin domain | Domain | Domain |
| IPR001879 | GPCR, family 2, extracellular hormone receptor domain | Domain | Domain |
| IPR003112 | Olfactomedin-like domain | Domain | Domain |
| IPR003334 | GPCR, family 2, latrophilin, C-terminal | Domain | Domain |
| IPR003924 | GPCR, family 2, latrophilin | Family | Family |
| IPR015630 | Latrophilin-3 | Family | Family |
| IPR017981 | GPCR, family 2-like | Domain | Domain |
| IPR017983 | GPCR, family 2, secretin-like, conserved site | Site | Conserved site |
| IPR032471 | GAIN domain, N-terminal | Domain | Domain |
| IPR036445 | GPCR family 2, extracellular hormone receptor domain superfamily | Family | Homologous superfamily |
| IPR043159 | D-galactoside/L-rhamnose binding SUEL lectin domain superfamily | Family | Homologous superfamily |