The domain within your query sequence starts at position 52 and ends at position 395; the E-value for the ANF_receptor domain shown below is 8.3e-75.

AEELAFRFAVNTINRNRTLLPNTTLTYDTQKINLYDSFEASKKACDQLSLGVAAIFGPSH
SSSANAVQSICNALGVPHIQTRWKHQVSDNKDSFYVSLYPDFSSLSRAILDLVQFFKWKT
VTVVYDDSTGLIRLQELIKAPSRYNLRLKIRQLPADTKDAKPLLKEMKRGKEFHVIFDCS
HEMAAGILKQALAMGMMTEYYHYIFTTLDLFALDVEPYRYSGVNMTGFRILNTENTQVSS
IIEKWSMERLQAPPKPDSGLLDGFMTTDAALMYDAVHVVSVAVQQFPQMTVSSLQCNRHK
PWRFGTRFMSLIKEAHWEGLTGRITFNKTNGLRTDFDLDVISLK

ANF_receptor

ANF_receptor
PFAM accession number:PF01094
Interpro abstract (IPR001828): This describes a ligand binding domain and includes extracellular ligand binding domains of a wide range of receptors, as well as the bacterial amino acid binding proteins of known structure [(PUBMED:8011339)].

This is a PFAM domain. For full annotation and more information, please see the PFAM entry ANF_receptor