The domain within your query sequence starts at position 222 and ends at position 439; the E-value for the 3kys domain shown below is 1e-121.

RTIASSRLRLLEYSAFMEVQRDPDTYSKHLFVHIGQTNPAFSDPPLEAVDVRQIYDKFPE
KKGGLKELYEKGPPNAFFLVKFWADLNSTIQEGPGAFYGVSSQYSSADSMTISVSTKVCS
FGKQVVEKVETEYARLENGRFVYRIHRSPMCEYMINFIHKLKHLPEKYMMNSVLENFTIL
QVVTSRDSQETLLVIAFVFEVSTSEHGAQHHVYKLVKD

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