What role did Nathaniel play in the restoration of Israel?

The question refers to the post-exilic restoration of Israel, and the name "Nathaniel" appears to be a variant rendering of Nehemiah, the key figure who led the rebuilding of Jerusalem's walls after the Babylonian exile.

Nehemiah served as cupbearer to the Persian King Artaxerxes and was deeply grieved when he heard that Jerusalem's walls lay in ruins. The king granted him permission to return to Judah, and Nehemiah was appointed governor of the province of Judah (Nehemiah 5:14). In that capacity he organised the rebuilding of the city walls, reformed social injustices, and led the people in renewing their covenant with God.

The role of scribe in the restoration belonged to Ezra, who led a separate return and read the Law publicly to the people (Nehemiah 8). The high priest during the rebuilding was Eliashib (Nehemiah 3:1). While prophets such as Haggai and Zechariah encouraged the returning exiles, the figure who served as governor and led the physical and administrative restoration was Nehemiah.