The domain within your query sequence starts at position 25 and ends at position 231; the E-value for the 3vx8 domain shown below is 1e-39.
LQFAPFNSALDVGFWHELTQKKLNEYRLDEAPKDIKGYYYNGDSAGLPTRLTLEFSAFDM SASTPAHCCPAMGTLHNTNTLEAFKTADKKLLLEQSANEIWEAIKSGAALENPMLLNKFL LLTFADLKKYHFYYWFCCPALCLPESIPLIRGPVSLDQRLSPKQIQALEHAYDDLCRAEG VTALPYFLFKYDDDTVLVSLLKHYSDF