The domain within your query sequence starts at position 149 and ends at position 261; the E-value for the 3t6a domain shown below is 3e-61.

KFVPPLMETVSSFRPNDFESKLLPPENKPLETAMLKHAKELFTNHDARVIAQHMLSVDCK
VARILEVSEDRKRSMGVSSGLELITLPHGRQLRLDIIERHNTMAIGIAVDIL

This is a PDB domain - please see the PDBSUM entry of 3t6a for further annotation