According to the Svadhyaya Mandala Pune version of the Tāittirīya-saṁhitā́ the r̥ṣi of TS 4.5 (Rudrādhyaya) is Agni-r̥ṣi. The metre is ṣatpadājagatī. The dēvata is not given.
Do note though that the Tāittirīya Anu-krámaṇī is not actually part of the saṁhitā́, so we don't have to take what it says word-for-word. There are instances where anu-krámaṇī-s actually contradict the Véda.
In my opinion I would take what's given in the Vājasaneya-Mā́dhyaṁdina-saṁhitā́-anu-krámaṇī over what the Tāittirīya-saṁhitā́-anu-krámaṇī says.
Over 719 mantra-s of the Tāittirīya-saṁhitā́ are from the Şākala-saṁhitā́, Tāittirīya tradition ascribes them to the dēva-s Prajāpati, Sōma, Agni and the Viśvēdēva-s where as the Şākala-saṁhitā́-anu-krámaṇī ascribes them to various r̥ṣi-s. In that case also I'd take the r̥ṣi-s ascribed to the Şākala-saṁhitā́-anu-krámaṇī over what the Tāittirīya-saṁhitā́-anu-krámaṇī says.
Hence I'd say the Vājasaneya-Mā́dhyaṁdina listing is better and that the actual r̥ṣi is Vāmadēva Gautama, where as I'd stick with the metre listing given by the Tāittirīya-saṁhitā́-anu-krámaṇī.