Metatron is also mentioned in the Pseudepigrapha, most prominently in the Hebrew/Merkabah Book of Enoch, also called 3 Enoch or Sefer Hekhalot (Book of [the Heavenly] Palaces). The book describes the link between Enoch son of Jared (great grandfather of Noah) and his transformation into the angel Metatron. His grand title "the lesser YHVH" resurfaces, Metatron says, "He [the Holy One]… called me, 'The lesser YHVH' in the presence of his whole household in the height, as it is written, 'My name is in him.'" (12:5, Alexander's translation). The narrator of this book, supposedly Rabbi Ishmael, tells how Metatron guided him through Heaven and explained its wonders. Here Metatron is described in two ways: as a primordial angel (9:2–13:2) and as the transformation of Enoch after he was assumed into Heaven.
The book probably is a composite of works from different writers which resulted in an extensive angelology and weird stories like the one where Metatron receives 60 lashes of fire for sitting down in the presence of God as a clumsy attempt to prove that Metatron was not a second deity next to God.