The domain within your query sequence starts at position 66 and ends at position 335; the E-value for the 4ce4 domain shown below is < 1e-12.

HVGKTDPGTVFVMNKNISTPYSCAMHLSEWYCSKSILALVDGQPWDMYKPLTKSCEIKFL
TFKDPDPKEVNKAYWRSCAMMLGCVIERAFKDDYVVSLVRAPEVPVIAGAFCYDVTLDKR
LDEWMPTKENLRSFTKDAHALIYRDLPFETLDVDARVALEIFQHNKYKVDFIEEKASQNP
ERIVKLHRIGDFIDVSEGPLIPRTSVCFQYEVSAVHNLNPSQPNLIRRFQGLSLPTHLRA
QFTIWDKLVERSRKMVTEDEVRQTENTEST

This is a PDB domain - please see the PDBSUM entry of 4ce4 for further annotation