The domain within your query sequence starts at position 21 and ends at position 81; the E-value for the 3wkj domain shown below is 7e-9.

SSRPEVQVPVNYVYRILQEEQYTPCIGSTTSDFLLAMLDYLTDYILEVVGSEANINNQQN
I

This is a PDB domain - please see the PDBSUM entry of 3wkj for further annotation