The domain within your query sequence starts at position 11 and ends at position 123; the E-value for the 3u12 domain shown below is 3e-6.

QIRSTNRSKHTRASQWKEAVIEIVERKQKVNLVVSFKLEERRRVFQLGDNVTGVVVSGEL
GLYHLDLTLRDDTSLLIDKLSSADVEHLKSFLDSSTPCESQQPMEPMSSQDDL

This is a PDB domain - please see the PDBSUM entry of 3u12 for further annotation